22103131311021 has 16 divisors (see below), whose sum is σ = 29481990811200. Its totient is φ = 14729846754048.

The previous prime is 22103131311017. The next prime is 22103131311049. The reversal of 22103131311021 is 12011313130122.

It is not a de Polignac number, because 22103131311021 - 2² = 22103131311017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22103131311421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421958410 + ... + 422010788.

It is an arithmetic number, because the mean of its divisors is an integer number (1842624425700).

Almost surely, 2^{22103131311021} is an apocalyptic number.

It is an amenable number.

22103131311021 is a deficient number, since it is larger than the sum of its proper divisors (7378859500179).

22103131311021 is a wasteful number, since it uses less digits than its factorization.

22103131311021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102908.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 22103131311021 its reverse (12011313130122), we get a palindrome (34114444441143).

The spelling of 22103131311021 in words is "twenty-two trillion, one hundred three billion, one hundred thirty-one million, three hundred eleven thousand, twenty-one".